Gaya APA

Sop, C, T. (1991). Clinical Practice on Acupuncture . Pyongyang: WHO C.C for Research and Standardization in Traditional Medicine.

Gaya MLA

Sop, Choe, Tae. "Clinical Practice on Acupuncture". Pyongyang: WHO C.C for Research and Standardization in Traditional Medicine, 1991. print.